Coal-washer.



A. J. SAYERS.

COAL WASHER.

APPLICATION FILED AU6.29, 1913.

1,142,060. Patented June '8, 1915.

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THE NORRIS PETERS C0. PHOTD-LITHO.. WASHINGTON, D. C

A. J. SAYERS.

7 GOAL WASHER. APPUCATION FILED AUG.29, 1913.

1,142,060, Patented June 8, 1915.

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A. 1. SAYERS.

COAL WASHER.

APPLICATION mu) AUG.29. 1913. I

1,142,060,. I PatentedJune 8,1915.

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Attornqyfl THE NORRIS PETERS CO" PHOTGJJTHO WASHINGIUN. D C.

.TTNTTEE) ;%TA.TE% PATENT @FFTQE.

ALBERT J. sevens, or cnzcaeo, rumors, assieuoza 'ro LINK -BELT COMPANY, or CHICAGO, ILLINOIS), a. CORPORATION or ILLINOIS.

COAL-WASHER.

Specification of Letters Patent.

Patented June 8, 1915.

Application filed August 29, 1913. Serial No. 787,254.

To aZZ whom it may concern Be it known that I, ALBERT J. Sarnns, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Coal-iVashers, of which the following is a specification.

My invention relates to coal washers and has for its object to provide means as hereinafter set forth.

The invention is illustrated in one form in the drawings hereto attached, wherein- Figure 1 is a cross section; Fig. 2 is a vertical section of the jig pan on theline 2-2 of Fig. 1; Fig. 3 is a detail section of the jig pan on the line 3+3 of Fig. 1; Fig. 4 is a horizontal section on the line ll of Fig. 1; Fig. 5 is a detail of the removable gate; Figs. 6 and 7 are sections showing further details of said gate.

Like parts are indicated by the same letters in all the figures.

A, A are the sides and partitions which form the two-part tank 13, C which parts are connected through the chute C and the jig. In the chute, jig and tank the water stands at an approximately uniform and common level.

D is the jig having the bottom D inclined and preferably perforate. It also, has the downwardly projecting parts or walls 1) which form an in rtia chamber wherein a very considerable quantity of water is held in position so that when the jig descends the water may pass freely up through the perforations of its inclined bottom.

I) is a slate opening at the forward edge of the perforated bottom D anditopens into a vertical chute D which consists of the outer wall D of the inertia chamber, a wall D and between the two, inclined walls D, D. This chute or outlet is thus larger at the top than at the bottom and it is capable of receiving slate from the bottom of the jig and carrying it down through a'contracting chute or opening oulet and discharging it into the inertia chamber. This outlet is formed so as to have a closed pocket I) above. This pocket is roofed'or covered by the clean coal chute E which discharges o that the clean coal passes into the tank C. v i

The inertia chamber maybe guided and kept in position in any desired manner, as for example, by the rollers F, the

into the chute C s brackets F F and F F these latter for convenience projecting from the back plate or beam F which is secured by means of the cross beams F to the shell or side A of the tank.

G is a coal inlet chute which preferably discharges into the opening G at the back or higher part of the jig so that as the coal flows over the chute G it is discharged through the opening G into the jig and.

eccentrics J on each end from which passes.

a rod J to theside of the jig. The rotation of the shaft and eccentrics causes the jig to vertically reciprocate.

K is a slate or refuse gate adapted to close or vary the size of the refuse discharge opening from the to the refuse chamber. It is connected by a rod K with the lever arm K on the shaft K associated with the handle K carrying the thumb piece K the spring controlled rod K, which is adapted to engage the circular rack K on a wall K which is mounted on the shaft K3, and thus by manipulating the handle the gate can be locked in any desired position. The gate K consists of a flat perforated plate the edges of which are received between vertical guide strips M, M projecting from the jig wall M This plate has an opening atM which by variation of its position controls the effective"opening from'the jiginto the refuse chamber. This gate is downwardly projectihg so as to control an opening N in the lower'end of the refuse chamber when that chamber is closed by the inclined bottom N as shown in Fig. 6. i This is a modified form of" structure intended to make it possible to cut ofi the access of all water from the inertia chamber to the jig'by way of the refuse chamher. The gate indicated in Figs. 6 and 7 by K is controlled for both purposes by operating the handle. While these drawings present the structure of a. working machine,

i I do not wish to be limited to these particu- 1 coal washers.

lar details, since they might be greatly varied. V

The essential point is that the structure should contain in a still water jig means for choking down or wholly cutting ofi the flow of water from the inertia chamber upwardly through the refuse chamber and laterally into the Y The use and operation of my invention are as follows: Coal washers may be roughly divided into three classes: those containing fixed jigs, those containing reciprocating jigs which are operated in a continuous stream of water and those which have jigs reciprocating in stillwater. These three classes will include most, if not all jigging The washer of this application is in'the third class. The material to be separated or washed is moved laterally or horizontally in a comparatively thin layer throughand substantially beneath the surface ofa body of stillwater. The lateral motion is due to the pressure of the oncomiug stream of material. The separation is effected by gravity, for the problem deals with materials of difiering specific gravity which have been mixed together. To effectthis separation the moving mass of material is loosened by reciprocating it vertically as it passes along against a confined body of water, all of the upwardly moving streams from which confined body of water are directed upwardly through the moving mass being substantially uniformly distributed therethrough. As the mass moves, under these conditions it is separated into two layers of unequal specific gravity, the lighter being discharged outside of the jig and the immediate j ig'tank, while the heavier is discharged into the confined body of water whereby disturbances, inequality of action and irregularity of stream movement in the water which is being utilized to loosen the bed is obviated.

In coal washersof the type wherein the jig is reciprooated in still water, it is important for effective operation that substantially all of the water which tends to move toward the jig when it descends should be directed through the bed of material in the jig and be discharged upwardly through the bed in relatively parallel streams which are comparatively uniformly distributed through the bed. Cross streams or disturbing or conflicting streams or currentsv are to be avoided and any tendency of any such water to pass through a portion of the bed and then escape without'entirely traversing the bed is very injurious to its action. .Since the separation by gravity which is relied upon, is due to the loosening of the bed or its vertical spread, it is obvious that every effort should be made to prevent disturbances or deflection of the vertical stream or streams of water passing upwardly through the bed. 'In types of machines like that illustrated in the drawings where provision is made for the lateral discharge of refuse, for example, slate, a disturbance of the fiow of water through the jig will occur if there is any escape for the water which tends to move toward the jig through the slate opening or channels or passages connected therewith or if there is any tendencyfor any considerable or excess amount of water to enter the jig laterally through the slate opening. To avoid these difiiculties the slate chamber is placed at the side of the jig and is connected therewith. It is closed at the top but open at the bottom into the inertia chamber or confined water chamber below the jig. When the parts are so arranged all ofthe water which tends to move toward the jig either passes up through the bed in the desired manner or passes up through the slate chamber. and then somewhat laterally through the slate opening into the bed. This latter is necessarily a disturbing stream of water tending to deflect or disturb the vertical streams of water immediately inside the slate opening and to deaden the bed and even force'some of the refuse matter up into the coal discharge. These evils in such an arrangement are of course variable being of little consequence in some forms of struc iures and with certain materials but in someinstances being of great importance and highly unsatisfactory to the operation of the machine. To obviate these dangers I have provided a throttling means for slowing down or even cutting 05 the flow of water through the slate chamber and slate opening toward the jig. I accomplish this by extending the slate. chamber downwardly into the inertia chamber and by hoppering it or reducing its cross-sectional area so that the tendency will be to minimize the upward fiow. of water through the slate chamber.

This tendency will be increased if the conditions are such that the slate tends to more or less clog or obstruct the lower part of the chamber, and in a modification'I have provided means for closing at least during a portion of the operation the lower end of the slate chamber so that for a period of time duringthe operation of the machine, it will absolutely cut off the flow of water through the slate chamber. The result of or to each other. This is the ideal condition for efficiency in the case of apparatuses of this kind.

In the foregoing explanation of the phenomena, I have thought of the water as moved upwardly through the perforatedbottom of the jig and being discharged in streams beyond and into the mass of material, and I have thought of the material as being carried in a mass and reciprocated through the vertical motion of the jig. Another way of stating the matter which is here presented, in order that no confusion of terms may result, is as follows: When the jig bottom descends, it descends through the water, thus leaving a larger or deeper water body above the bottom of the jig and within the jig. The downward displacement of the jig bottom permits the contents of the jig to settle and the difference in specific gravity causes its various particles to descend unequally and therefore with unequal speed and to arrange themselves instrata according to their differences in specific gravity. There is little or no water flowing upwardly and entirely through the jig and out with the coal.

I claim:

1. In a washer the combination of a washing tank with a jig, therein having a perforated bottom and material and refuse discharge openings at one side, means for reciprocating the jig therein, means for supplying material to the jig at a distance from the openings, an inertia chamber beneath the jig, a refuse chamber outside. of the jig but connected at all times with the refuse discharge opening of the jig and connected with the inertia chamber whereby all the water from the inertia chamber is directed through the whole of the bed of material in the jig and the separated refuse is discharged into the inertia chamber and a downward extension of the refuse chamber into the inertia chamber, said inertia chamber and extension being attached to and movable with the jig.

2. In a washer the combination of a washing tank with a jig therein having a perforated bottom and material and refuse discharge openings at one side, means for reciprocating the jig, means for supplying material to the jig at a distance from the openings, a relatively deep downwardly extending inertia chamber beneath the jig, a refuse chamber outside of the jig closed above but connected at all times with the refuse dis charge opening of the jig and connected with the inertia chamber whereby all the water from the inertia chamber is directed through the who-1e of the bed of material in the jig and the separated refuse is discharged into the inertia chamber, and a downward extension of the refuse chamber into the inertia chamber, said inertia chamber and extension being-attached to and' movable with the jig.

3. In a washer the combination of a Washing tank with a jig therein having a perforated bottom and material and refuse discharge openings at one side, means for reciprocating the jig, means for supplying material to the jig at a distance from the openings, a relatively deep downwardly extending inertia chamber attached to the jig and beneath the jig, a refuse chamber outside of the jig closed above but connected at all times with the refuse discharge opening of the jig and connected with the inertia chamber whereby all the water from the inertia chamber is directed through the whole of the bed of material in the jig and the separated refuse is discharged into the inertia chamher and a downward extension of the refuse chamber into the inertia chamber, said extension being connected to and movable with the jig.

. 4. In a washer the combination of a washing tank with a jig therein having a perforated bottom and material and refuse discharge openings at one side, means for reciprocating the jig, means for supplying material to the ig at a distance from the openings, a relatively deep downwardly extending inertia chamber beneath the jig, a refuse chamber outside of but attached so as to reciprocate with the jig and connected with the refuse discharge opening of the jig and the inertia chamber whereby all the water is directed through the whole of the bed of material in the jig and the separated refuse is discharged into the inertia chamber, and a downward extension of the refuse chamber into the inertia chamber, said extension being connected to and movable with the jig.

5. In a washer the combination of a washing tank with a jig therein having a perfo rated bottom and material and refuse discharge openings at one side, means for reciprocating the jig, means for supplying material to the jig at a distance from the openings, a relatively deep downwardly extending inertia chamber attached to the jig and beneath the jig, a refuse chamber outside of but attached so as to reciprocate with the jig and connected with therefuse discharge opening of the jig and the inertia chamber whereby all the water is directed through the whole of the bed of material in the jig and the separated refuse is discharged into the inertia chamber, and a downward extension of the refuse chamber, said extension being connected to and movable with the jig.

6; In a washer the combination of a washing tank with a jig therein having a perforated bottom and material and refuse discharge openings at one side, means for reciprocating the jig, means for supplying material to the jig at a distance from the openings, an inertia chamber beneath the jig, a

refuse chamber outside of the jig but connected with the refuse discharge opening of the jig and the inertia chamber whereby the water is directed through the whole of the bed of material in the jig and the separated refuse is discharged into the inertia chamber and a downwardly projecting continuation of the refuse chamberwith downwardly;

" diminishing cross'section for the purposeof throttling the flow of water through the re fuse chamber into the jig. I

7 In a washer the combination of a washing tank with a jig therein having a perforated bottom and material and refuse disber and a downwardly projecting continua-' tion of the refuse chamber with downwardly diminishing cross section for the purpose of throttling the flow of water through the refuse chamber into the jig and means for en-- tirely cutting ofi such flow of water.

8. Ina washer the combination of a washing tank with a jig therein having a perforated bottom and material and refuse dist charge openings at one side, means for reciprocating the ig, means for supplying material to the jig at a dlstance from the Copies of this patent may be obtained for lngs, an inertia chamber beneath the jig, a

openings, an inertia chamber beneath the jig, a refuse chamber outside of the jig but connected with the refuse discharge opening of the jig and inertia chamber whereby all the water is directed through the wholeof the bed of material in the jig and the separated refuse is discharged into the mertia chamber, a downward extension of the refuse chamber into the inertia chamber and means for cutting off the flow. of water upwardly from the inertia chamber through 7 the refuse chamber into the jig, said extension being connected to and movable with the jig. I

9. In a washer, the combination of a washing tank with a jig therein having a perfo rated bottom and. material and refuse discharge openings at one side, an inertia chamber beneath the jig, a refuse chamber outside of the jig butconnectedwith the refuse dischar 'e opening of the ig and con-- nected also with the inertia chamber whereby all the Water from the inertia chamber is directed through the whole of the bed'of material in thejig and the separated refuse is discharged into the inertia chamber, and means'between the refusechamber and the inertia chamber vfor throttling the backward flow of water from the inertia chamber through the refuse chamber into the jig.

In testimony whereof, I afliX my signature in the presence of two witnesses this 23rd day of August 1913. r r p 7 V a A. JQSAYERS.

Witnesses: i i a r JULIUs S. HoLL,

R. D. HASKINS.

five cents each, by addressing the "wommissioner of Patents, Washington, D. 03. a a r I 

